Dipropylamine
Dipropylamine
CAS: 142-84-7
Molecular Formula: C6H15N
Dipropylamine - Names and Identifiers
| Name | Dipropylamine |
| Synonyms | DPA DNPA Dipropylamine 2 propylamine DIPROPYLAMINE AURORA KA-7671 Di-n-propylamine DI-N-PROPYLAMINE N,N-Dipropylamine LABOTEST-BB LTBB000411 N-propylpropan-1-amine Rcra waste number U110 N-Propyl-1-propanamine N-propylpropan-1-aminium |
| CAS | 142-84-7 |
| EINECS | 205-565-9 |
| InChI | InChI=1/C6H15N/c1-3-5-7-6-4-2/h7H,3-6H2,1-2H3/p+1 |
Dipropylamine - Physico-chemical Properties
| Molecular Formula | C6H15N |
| Molar Mass | 101.19 |
| Density | 0.738g/mLat 25°C(lit.) |
| Melting Point | -63 °C |
| Boling Point | 105-110°C(lit.) |
| Flash Point | 39°F |
| Water Solubility | soluble |
| Solubility | 35g/l (experimental) |
| Vapor Presure | 38 hPa (20 °C) |
| Appearance | Liquid |
| Color | Clear |
| Merck | 14,3343 |
| BRN | 505974 |
| pKa | pK1:10.91(+1) (25°C) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Highly flammable. Incompatible with strong oxidizing agents. |
| Explosive Limit | 1.8-9.3%(V) |
| Refractive Index | n20/D 1.4049(lit.) |
| Physical and Chemical Properties | Colorless transparent liquid, with ammonia odor. Slightly soluble in water, soluble in ethanol and ether, etc. |
Dipropylamine - Risk and Safety
| Risk Codes | R11 - Highly Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R35 - Causes severe burns |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2383 3/PG 2 |
| WGK Germany | 1 |
| RTECS | JL9200000 |
| TSCA | Yes |
| HS Code | 29211910 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 0.93 g/kg, H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 23, 95 (1962) |
Dipropylamine - Nature
Open Data Verified Data
colorless transparent liquid, ammonia odor, low toxicity. The relative density was 0.7401. Boiling point 109~110 deg C. Melting Point -63.6 °c. Flash point 7 ℃. Refractive index 4042. The vapor pressure at 20 °c was 2.80 kPa. Slightly soluble in water, soluble in ethanol and ether, etc. Hydrate formation with water.
Last Update：2024-01-02 23:10:35
Dipropylamine - Preparation Method
Open Data Verified Data
- The N-propanol amination method is obtained by catalytic dehydrogenation, amination, dehydration and hydrogenation of propanol as a raw material (see tripropylamine).
- acrylonitrile hydrogenation method using acrylonitrile as a raw material and a copper-nickel compound as a catalyst, the catalytic hydrogenation is carried out at a temperature of 40-250 ° C. And a pressure of 0-4.9 MPa to obtain dipropylamine.
Last Update：2022-01-01 10:35:00
Dipropylamine - Use
Open Data Verified Data
This product is a raw material for organic synthesis, which is used to produce pesticide herbicides such as trifluralin, duleling, mash-killing and Dada-killing, dipropylglutamine and other medicines, and is also used as a boiler preservative, engine coolant, carbon removal agent, anti-corrosion lubricant and emulsifier and solvent, etc.
Last Update：2022-01-01 10:35:00
Dipropylamine - Safety
Open Data Verified Data
- This product can strongly stimulate the upper respiratory tract, eyes and skin. Mouse oral LD50 320mg/kg, rat oral LD50 280mg/kg. Dipropylamine at a dose of 200mg/kg could decrease the activity of monooxidase in rat liver by 44% ~ 63%. Congestion and bleeding in the internal organs; Proteoglyphic dystrophy of the liver and myocardium. The maximum allowable concentration at the operating site is 2 mg/m3. Necessary protective equipment should be worn during operation.
- This product is flammable, can be shipped in iron drum or tank car, reagent grade glass bottle packaging. It must be kept in a closed container, stored in a cool and ventilated place, away from the place of easy Ignition. And oxidant Isolation. The hazardous materials shall be stored and transported according to the regulations.
Last Update：2022-01-01 10:35:01
Dipropylamine - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | dipropylamine, also known as din-propylamine, is a flammable and highly toxic corrosive liquid that exists in tobacco leaves and artificially discharged industrial wastes in nature. Exposure can cause excitement, followed by depression, internal bleeding, nutritional disorders or severe irritation. |
| Physical properties | Din-propylamine is a colorless and transparent liquid. It smells like ammonia. Can form hydrate. Easily soluble in water, ethanol and ether. Hydrate with water. Density 0.738, melting point -63 ℃, boiling point 110 ℃, flash point 17 ℃, refractive index 1.40445 |
| application | din-propylamine can be used as a solvent and as an intermediate for the production of medicines, pesticides, dyes, mineral flotation agents, emulsifiers and fine chemicals. |
| use | used in the preparation of pesticides, medicines, emulsifiers, etc. di-n-propylamine is the herbicide trifluralin and sulfuryl, grass grass Dan, grass grass enemy intermediates. Organic synthetic raw materials. Used for the preparation of pesticides, pharmaceuticals (dipropylglutamide, etc.), boiler preservatives, engine coolants, lubricants, metal cutting oils, decarbonizers, anti-corrosion lubricants and emulsifiers, and solvents. Among them, pesticides are the most important use. The main pesticides produced by dipropylamine: trifluralin, diuralin, mikaomeng, gerondamine, methyl sulfone, isopyrene, jialeling, mikao Dan, bikao Dan. Solvents, and intermediates used in the production of medicines, pesticides, dyes, mineral flotation agents, emulsifiers, and fine chemicals. Used for the preparation of pesticides; medicine (dipropylglutamide, etc.); boiler preservatives; engine coolant; lubricating oil; metal cutting oil; decarbonizer; anti-corrosion lubricants and emulsifiers and solvents. Among them, pesticides are the most important use. The main pesticides produced by dipropylamine: trifluralin; Diuralin; Mie Cao Meng; Fundamine; Methyl sulfone Leling; Isopropyl Leling; Jialeling; Mikao Dan; Bingcao Dan. |
| Production method | 1. The n-propanol ammonification method uses propanol as raw material and is obtained by catalytic dehydrogenation, ammonification, dehydration and hydrogenation (see "Tripropylamine") According to relevant data reports, if nickel-copper-pumice is used as the catalyst for the above reaction, it is beneficial to the formation of dipropylamine; nickel-copper-activated alumina is used as the catalyst, it is beneficial to the production of tripropylamine. 2. Acrylonitrile hydrogenation method uses acrylonitrile as raw material and copper-nickel compounds as catalyst to produce dipropylamine by catalytic hydrogenation at 40-250 ℃ and 0-4.9MPa. In addition, the hydrogenation of propiononitrile or acrylonitrile, when using a carbon-supported rhodium catalyst, using excess hydrogen to continuously remove ammonia, the selectivity of dipropylamine is above 85%, and n-propylamine is rarely generated, and tripropylamine is not generated at all. The reduction amination of propionaldehyde under the action of rhodium catalyst also obtains a high proportion of dipropylamine. its preparation method is based on propanol as raw material, through catalytic dehydrogenation, ammoniation, dehydration, hydrogenation. The reaction catalyst is Ni-Cu-Al2O3, the pressure is (39±1)kPa, the reactor temperature is (190±10)℃, the space velocity of propanol is 0.05~0.15 h-1, the raw material ratio is propanol: ammonia: hydrogen = 4:2:4, and dipropylamine and tripropylamine are obtained at the same time. |
| category | flammable liquid |
| toxicity classification | highly toxic |
| acute toxicity | oral administration-rat LD50:460 mg/kg; Inhalation-mouse LC50:3070 mg/m3/2 h |
| stimulation data | skin-rabbit 100 micrograms/24 hours |
| flammability hazard characteristics | flammable in case of open flame, high temperature and oxidant; toxic nitrogen oxide smoke from combustion |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidants and acids |
| fire extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |
| occupational standard | STEL 2 mg/m3 |
| spontaneous combustion temperature | 260°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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